function p(url) {
 var w = 920;
 var h = 520;
 var le = (screen.availWidth - w) /2;
 var he = (screen.availHeight -h) /2;
 win = window.open(url,null,'height='+h+',width='+w+',status=no,toolbar=no,scrollbars=1,menubar=no,location=no,resizable=yes,left='+le+', top='+he,false);
 win.focus();
}